# NTSB UNK64X2229: Piper PA23, N5455Y, Marshall, MN, June 11, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 11, 1964
- Place: Marshall, MN · MARSHALL, MN
- Location: 44.4491° N, 95.7892° W: Placed by OpenAirDocs: center of Marshall, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.4491&lon=-95.7892&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 7, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 183302
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2229
- Page: https://openairdocs.org/ntsb/UNK64X2229

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1614  64/6/11    MARSHALL MINN       PIPER PA23          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 43, 3500
        TIME - 1440                    N5455Y              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 65 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - MARSHALL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE                                  IN FLIGHT: DESCENDING
           COLLIDED WITH: WIRES/POLES                               LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL)
           POWERPLANT - PROPELLER AND ACCESSORIES: SPINNERS,DOMES
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- PROPELLER OVERSPED DUE TO SEAL LEAK IN DOME
```

## Aircraft

- Registration: [N5455Y](https://openairdocs.org/deregistered/N5455Y-2014-12-22), registration cancelled 2014-12-22, S/N 27-2540, built 1964 (OpenAirDocs)
- Reported make and model: PIPER PA23
- Registry model: [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250) (registry code 7102308) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Marshall

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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